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Alpha decay studies of new neutron-deficient francium isotopes and their daughters
Neutron-deficient francium isotopes were produced by proton-induced spallation reactions and investigated by alpha spectroscopy following on-line mass separation. The new isotopes /sup 202,202/Fr were identified and their half-lives measured. An improved value for the half-life of /sup 203/Fr was ob...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
1980
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/BF01415836 http://cds.cern.ch/record/879334 |
| Sumario: | Neutron-deficient francium isotopes were produced by proton-induced spallation reactions and investigated by alpha spectroscopy following on-line mass separation. The new isotopes /sup 202,202/Fr were identified and their half-lives measured. An improved value for the half-life of /sup 203/Fr was obtained. Alpha branching ratios were determined for /sup 198m, g,199/At. The derivation of the mass excess of /sup 202/Fr and the systematics of alpha energies and reduced widths are discussed. (17 refs). |
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